Bulla-Hellwig M, Vollmer J, Götzen A, Skreczek W, Hartje W
Department of Psychology, University of Bielefeld, Germany.
Neuropsychologia. 1996 Oct;34(10):987-91. doi: 10.1016/0028-3932(96)00021-8.
Changes in arterial blood flow velocity induced by cognitive activity were measured by simultaneous bilateral transcranial Doppler sonography (TCD) of the posterior and the middle cerebral artery. The finding of a robust left hemisphere dominance for verbal tasks but of an inconsistent right hemisphere dominance for visuospatial tasks obtained in an earlier study [13], in which TCD measurement had been restricted to the middle cerebral arteries, was confirmed. At the same time, it could be demonstrated that the failure to find the expected right hemisphere dominance for tasks of spatial visualization and mental rotation extended to the TCD measurement of the posterior cerebral arteries.
通过对大脑后动脉和大脑中动脉进行同步双侧经颅多普勒超声检查（TCD），测量认知活动引起的动脉血流速度变化。早期一项研究[13]中，TCD测量仅限于大脑中动脉，该研究发现言语任务存在明显的左半球优势，但视觉空间任务的右半球优势并不一致，这一发现得到了证实。同时，可以证明，在空间可视化和心理旋转任务中未能发现预期的右半球优势，这一情况在大脑后动脉的TCD测量中同样存在。
